Adhesive composition



Patented Jan. 28, 1%32 tenses rarer series WEBSTER E. BYRON BAKER, GE BROOKLYN, HEW YQRE, AND HARRY WEAVER, @F roan HAVW, EMSYLVAHXA ADHESIVE GOEQOQITIGH Ho Drawing.

The principal object of the present invention is to provide a strong, water insoluble adhesive, particularly fitted for use in laying linoleum and tiles and also useful for 5 other purposes.

The invention consists of a strong water insoluble adhesive com osition of matter suitable for laying lino cum and tiles and for other purposes and com rising an emulsion of concentrated sulphite cellulose liquor, being an adhesive concentrated water soluble derivative of spent sulphite cellulose liquor from sulphite wood pulp processes, and wax, such as parafine wax, which imparts water insolubility and strength to the extract with, or without, glycerlne which when present imparts elasticity and flexibility to the compound.

The invention also comprises the improve- 39 ments-to be presently described and finally claimed.

The wax is melted and the extract is heated to approximately the temperature of the melted wax. About 9% more or less of melt- 25 ed parafiine wax is mixed with the extract making an emulsion. 5% to 10% of glycerine is incorporated into the composition. These percentages of arafine and gl cerine are calculated on the asis of the weight of 39 the concentrated extract.

If desired there may be added mineral filler such as china clay, ground soapstone or the like in the proportion of for example from 40% to calculated on the basis or? 35 the weight of the concentrated extract.

It is preferable to warm the adhesive for use.

Concentrated sulphite cellulose extract is adhesive and its use alone hasbeen attemptll ed, but it is soluble in water and cracks or crazes upon dryin However, in admixture with wax and g cerine, the adhesive is strong, flexible an elastic and substantially insoluble in water.

From waste liquor is extracted a number of substances adapted for a variety of uses and all well known. Some of them are tenning materials, other are read binding msterials, and others are in the nature of adhesive materials. The latter are the'lfind Application filed .nngust 28, 1928. Serial N0. 3055,6454.

that are used in this invention. In fact any of the well known adhesive products or binders made from sulphite cellulose waste liquor are suitable for use in the practice of the invention, but more particularly those made by mild oxidation, neutralization, and subsequent concentration in multiple effect evapf I orators.

We claim: 1. A strong water insoluble adhesive composition of matter suitable for laying linoleum and tile and for other purposes comprising an emulsion of concentrated sulphite cellulose extract, being an adhesive water soluble derivative of waste liquor from sulphite wood ulp processes and consisting primarily of su stances dissolved from woo wax which imparts water insolubility and stren th, glycerine, and a filler.

2. sticky, water insoluble, adhesive composition composedof an extract made from the waste 1i nor of sulphite wood pulp process by mil oxidation, neutralization, and concentration in multi le effect evaporators, emulsified with wax, ycerine and a filler.

WEBSTER E. BYRON BAER. .HARRY WEAVER. 

